Ring network made using a dual optical data bus

The invention relates to a light looped network, comprising a aid of at least one optical fibre seat of the optical coupler (340), the connection of optical fibre and mesh point or an optical network access node to the. The stretching a reticular dot pattern comprises a (i) at least sending machine (330-1), which is at least a first wavelength voltage optical signal along the direction of transmission optical fibre (455) end (420), and a (II) at least optical receiver (330-2), wherein said at least one is different from the first wavelength second wavelength raising optical signal. The optical network access node comprising such as concentrator (320) equal device, which can be is the optical receiver (330-2) and sending machine (330-1) communication. Rises the wavelength signals and voltage signal is a shared by multiple station.